Bioelectrical impedance analysis(BIA)measures the body composition and its change by the electric feature of the extracellular fluid and intracellular fluid.It has been widely used for its noninvasiveness, convenience and accuracy, especially in population epidemiology and clinical monitoring.We aim to review the advantages and shortcomings,and try to discuss about the application of this technique and its potential.

Objective To explore the correlation of B-type natriuretic peptide (BNP) with blood lipids and renal function in elderly patients with coronary heart disease (CHD).Methods According to the four quantiles of BNP level,325 subjects aged 65 years and over were divided into four groups:group A (≤32.4 ng/L),group B (32.5 ng/L),group C (62.4 ng/L),group D (＞ 162.5 ng/L).The left ventricular ejection fraction (LVEF),left ventricular end-diastole dimension (LVEDD),levels of blood lipids and renal function were compared among the groups.Results With the increase of BNP level,the LVEF was gradually decreased [(63.3±8.2) ％,(59.6±7.4) ％,(57.9±9.7)％,(55.2±10.6)％,respectively,F=11.54,P＜0.01] and the LVEDD was gradually increased (F=6.76,P＜0.01),the level of triglyceride (TG) was gradually decreased (F=2.73,P ＜0.05) in group A,B,C and D.Creatinine clearance was gradually decreased [(1.24±0.31) ml ·s-1 · 1.73 m-2,(1.21±0.31) ml· s-1 · 1.73 m-2,(1.24±0.29) ml · s-1 · 1.73 m 2,(1.09± 0.33) ml · s-1 · 1.73 m-2,respectively,F=3.62,P＜0.05],and blood urea nitrogen was gradually increased (F=4.43,P＜0.05) in group A,B,C and D.Multi-linear regression analysis showed that levels of total cholesterol,triglyceride,low density lipoprotein-cholesterol,high density lipoproteincholesterol,very low density lipoprotein-cholesterol,creatinine clearance and blood urea nitrogen were influencing factors for BNP (all P＜0.05).Conclusions BNP level can be used as a sensitive indicator for the diagnosis of heart failure and the assessment of its severity.The levels of blood lipids and renal function are associated with BNP.

OBJECTIVETo examine the expression and distribution of glucose transporter 1(GLUT1) in gastric cancer tissues and investigate its relation to clinicopathological parameters and prognosis of patients with gastric carcinoma.

METHODSImmunohistochemistry was used to examine the expression of GLUT1 in 79 samples of gastric carcinoma tissue. The association of GLUT1 expressive features with clinicopathological characteristics, including histological subtype, depth of invasion, lymph node metastasis, and patients' prognosis were analyzed.

RESULTSNone of normal gastric epithelium expressed GLUT1, whereas 28 of 79 carcinoma samples(35.4%) were positive. Well differentiation type, median differentiation type and poorly differentiation type were GLUT1 positive in 56.5%, 33.3%, and 36.0% cases respectively, while the Signet ring cell carcinoma and mucinous adenocarcinoma were rarely positive(1/6 and 7.7%, respectively). GLUT1 positivity was associated with histological subtype(P=0.044), tumor size(P<0.01), lymph node metastasis(P=0.032), and carcinoma stage(P=0.007). One year survival rates of patients with GLUY1 positive and negative were 64.3% and 90.2% respectively(P=0.035).

CONCLUSIONIn human gastric carcinoma, GLUT1 expression is associated with tumor aggressiveness, and may be a useful marker of prognosis.

Glucose Transporter Type 1 ; metabolism ; Humans ; Lymph Nodes ; metabolism ; Lymphatic Metastasis ; Neoplasm Staging ; Prognosis ; Stomach Neoplasms ; diagnosis ; metabolism ; pathology

Objective Toinvestigate the role of dynamic dispersion of electrical recovery in ventricular fibrillation maintenance mechanism.Method Thirty-seren male Yorkshire pigs weighing (23?2.5) kg at 3 months age were randomly divided into Sham-operated group and myocardial infarction group in which the first branch of left anterior descending coronary artery of animals was hgated.After 4 weeks,according to VF occurrence by programmed electrical simulation,the myocardial infarction hearts were divided into two groups, twelve hearts in VF (+) group or six hearts in VF (-) group;and the normal hearts were divided into two groups,five hearts in VF (+) group or ten hearts in VF (-) group.Action potential duration (APD) of subendocardial,subepicardial and mid-layer myocardium of left ventricular anterior wall were recorded simultaneously.The relationship between APD and diastolic interval was quantified as an electrical restitution curve.A Student's-test was used to specify differences between groups.Results At the fourth week after coronary artery ligation,eighteen myocardial infarction hearts and fifteen normal hearts were investigated.When investigating transmural dispersion of reporlarization (TDR) of left ventricle,there was no difference between VF (+) group and VF (-) group [ (20.43?7.01) ms vs (22.32?7.53) ms,P=0.45],although there was statistically significant between normal hearts and myocardial infarction hearts [ (15.66?4.45) ms vs (25.72?6.70) ms,P =0.001].The percentage of APD restitution slope exceed 1 and APD restitution slope maximum were high in the VF (+) group with myocardial infarction hearts and in the VF (+) group with normal hearts, lower in the the VF (-) with normal hearts and lowest in the the VF (-) group with myocardial infarction hearts.Conclusion Dynamic APD restitution properties may play an important role in the ventricular fibrillation maintenance mechanism.The APD restitution slope and not static TDR have prognostic value regarding ventricular fibrillation events.The hearts with the steepest of APD restitution curves has the greatest liability of ventricular fibrillation to happen.

Practice abilityoriented professional quality training is an important part of thethree orientation talent training mode in Qiqihar Medical School, and it is the key link of the reform and inno-vation of talent training mode. This article mainly expounds the connotation of training mode in the three orientation under the guidance of medical personnel and medical research ability, and the training objec-tives cover innovative thinking ability and scientific research ability, including five aspects of training strat-egy such as reforming the teaching mode of the traditional theory course, setting up scientific research related courses, carrying out academic lecture, reforming the teaching mode of experiment course and con-structing the scientific research team of teachers and students by the scientific research project as well as seven aspects of the evaluation system, such as the literature review, the title of the report, academic report and research application writing, scientific research (comprehensive) experiment report, thesis writing and comprehensive performance, and deeply analyzes the close relationship between the practice ability and the medical research ability of medical students.

Xiaoyao pills are a famous traditional Chinese medicine collected in Welfare Pharmacy, which is a classic prescription for treating liver depression and spleen deficiency. However, its composition is complex. In order to better control the quality of Xiaoyao pills, in this study, HPLC-ion-trap time-of-flight mass spectrometry (LC-IT-TOF/MS) was used to identify the main ingredients of Xiaoyao pills, paeoniflorin, albiflorin, glycyrrhizic acid, saikosaponin A and saikosaponin B2. Then a liquid chromatography tandem mass spectrometry (LC-MS/MS) was developed for simultaneous determination and quantification of the main compounds. Fragmentation pathways of five active components were obtained. The method was validated. Five active ingredients in Xiaoyao pills had a good linear relationship, and the values of RSD (%) of repeatability were all less than 5%, the recovery ranges were between 90% and 115%, and the values of RSD (%) of each substance were less than 10% after the sample solution is placed for 24 hours. Three batches of Xiaoyao pills (concentrated pellets) and two batches of Xiaoyao pills (water pellets) were determined, the contents of paeoniflorin in concentrated pills were more than 4.0 mg·g^-1, and those in water pills were more than 2.5 mg·g^-1, which was accordance with Chinese Pharmacopoeia. However, other compounds behave differently. This method has high sensitivity and reliable measurement results, which provides basis for quality control of Xiaoyao pills and material basis for pharmacology research.

Objectives To discuss mental health of fresh graduate students in China Academy of Chinese Medical Sciences (hereinafter referred to as our academy); To provide psychological basis for education and management of graduate students.Methods All 2014 fresh graduate students in our academy took psychological test via SCL-90 and comparison was made between this result and normal results of Chinese graduate students.Results The primary psychological problems of graduate students from our academy were shown as obsessive compulsive disorder (14.02%), interpersonal barriers (7.32%), depression (8.54%), and anxiety (5.49%). Among the freshmen, psychological health level of doctor candidates is higher than that of master candidates . Mental health of fresh TCM graduate students is better than that of national college students, with statistical significance (P<0.01). Conclusion Mental health of TCM graduate students is better. There is specificity for TCM students’ mental health maintenance. Therefore, health maintenance for TCM students should make full use of advantages in TCM major.

OBJECTIVETo investigate the expression of human telomerase reverse transcripase (hTERT), cyclin D1 mRNA, p16(INK4), p21(WAF1) mRNA and p27(KIP1) protein in human ameloblastoma (ABs).

METHODSThe expression of hTERT, cyclin D1, p16(INK4), p21(WAF1) mRNA and p27(KIP1) protein in 54 cases of human ABs were detected by in situ hybridization or immunohistochemistry.

RESULTSThe positive cases of hTERT mRNA, cyclin D1 mRNA was 51, 23, respectively. The positive cases of p16(INK4), p21(WAF1) mRNA and p27(KIP1) protein was 17, 12, 9. Comparing with recurred and transformed malignantly, the expression of hTERT mRNA, cyclin D1 mRNA increased, and the expression of p16(INK4), p21(WAF1) mRNA and p27(KIP1) protein decreased or lost. The expression of hTERT mRNA and pl6(INK4), p21(WAF1) mRNA and p27(KIP1) protein in ABs had middle to high negative relation (r(k) = -0.587, r(k) = -0.652, r(k) = -0.783, P < 0.001).

CONCLUSIONThe hTERT mRNA expression in ABs is related to the reguation of pl6(INK4), p21(WAF1) mRNA and p27(KIP1) protein.

Ameloblastoma ; Cyclin D1 ; Cyclin-Dependent Kinase Inhibitor p21 ; Cyclin-Dependent Kinase Inhibitor p27 ; Cyclins ; Humans ; Immunohistochemistry ; RNA, Messenger ; Telomerase

Objective To explore the compound matrine injection on human hepatoma smmc-7721 cells' proliferation.Methods Human hepatoma smmc-7721 cells were sterilely cultured.Assayed the effects of compound matrine injection on smmc-7721 cells by MTT.The concentrations of the compound matrine injection were 3.34,2.38,1.43 and 0.48 mg/ml; Used the double staining method of annexin V-fluorescein isothiocyanate(Annexin V-FITC)/propidium iodide (propidium iodide,PI) to measure the apoptosis of hepatoma cell.The concentrations of the compound matrine injection were 0.86,1.72,and 3.43 mg/ml.Results The apoptosis rates of compound matrine injection with different concentration of 3.34,2.38,1.43 and 0.48 mg/ml on liver cancer cell SMMC-7721 were51.03％、53.67％、49.83％ and 0.03％ respectively after 24 hours; and 67.14％、65.35％、62.25％ and 0.05％ respectively after 48 hours;and 74.16％、68.77％、66.04％ and 26.02％respectively after 72 hours.The apoptosis rates of compound matrine injection with different concentration of 0.86,1.72 and 3.43 mg/ml on liver cancer cell SMMC-7721 were(2.86±0.35)％,(15.16± 1.15)％and(13.17±0.40)％ respectively after 24 hours; and (8.57±0.44)％,(28.07±0.76)％ and (29.81±8.10)％respectively after 48 hours,which were significantly higher than the control group (1.05±0.09)％(P＜0.05).Conclusion The compound matrine injection has a significant inhibition on human hepatoma smmc-7721 cells' proliferation and the mechanism was its inducing cell apoptosis.

Objective To compare the dosimetric difference in forward intensity modulation radiotherapy (fIMRT)and inverse IMRT(iIMRT)planning for breast cancer.Methods Six patients received radiotherapy alone after left breast-conserving surgery were selected.For each patient,two treatment phns(flMRT and iIMRT)were designed with Pinnacle3 7.4f.In each plan,the volume of PIT received prescription dose was not less than 95 %.The dosimetrie parameters were assessed with dose volume histograms in planning target volume (PIT)and organ of around risk(OAR).Results Of flMRT and ilMRT plans,the PTV average canformal indexwere(0.67±0.06)and(0.66±0.06)(t = 2.423,P ＞ 0.05),average homogeneity index were (28.2±6.0)% and(26.1±6.8)%(t = 2.164,P ＞ 0.05);the volume of left lung received 20 Gy(V20)were(18.7±3.3)% and(17.0±2.8)%(t =5.087,P<0.05),and V30 of left lung were(15.5±3.0)%and(14.0±2.6)%(t =7.272,P<0.05);V30 of heart were(4.1±3.1)% and(3.5±2.5)%(t=1.916,P ＞ 0.05);the total monitor units were(262±5)MU and(308±14)MU(t = 7.515,P < 0.05).Conclusions There were no significant differences of CI,HI,and V30 of heart between flMRT and iIMRT.Because of fewer MUs,fIMRT plan could reduce the machine abrasion and treatment time,but V30 and V30 of left lung are higher significantly than iIMRT plan.